Consider this your sign to give your knitwear a little more thought this season. The humble cardigan is getting a quietly elegant update for autumn 2026, thanks to one particularly pretty detail: the frog fastening. First spotted bubbling up on jackets last winter, and then on linen blouses throughout summer, these ornamental knot-and-loop fastenings have now made their way onto knitwear—and they’re giving even the simplest autumn outfits a decidedly more polished feel.
Zara’s affordable frog-fastening cardigan, shown here, is already selling out.
Zara’s popular frog-fastening cardigan is proving the high-street appeal of the trend, while a number of retailers, from affordable favourites to luxury labels, are following suit with their own takes. And I can see why. A frog fastening has a clever way of making a basic cardigan feel more considered and intentionally styled, adding elegance without requiring any extra effort (or sacrificing the cosy factor we expect from our autumn knits). It’s unsurprising that I’ve already started seeing chic fashion people wearing these frog-fastening cardigans throughout fashion month.
Influencer Debora Rosa shows us all how chic the frog-fastening trend is for autumn.
It’s the combination of polish and comfort that makes the trend particularly appealing for the season ahead. Wear one with your favourite jeans for an easy everyday look, or layer it over a dress when you want something a little more refined. Either way, frog-fastening knitwear is shaping up to be the chicest way to cosy up this autumn. I’ve scoured the internet to find the best styles on offer right now—keep scrolling to shop them and get ahead of the trend.
Shop the Best Frog-Fastening Cardigans
I can already tell this is going to be a sellout.
A more fitted option for added elegance.
Of course, Mango is ahead of the trend.
This is a beautiful, premium piece that feels classic as well as being bang on trend.
I love the more relaxed styling here.
Fashion disciples are obsessed with Róhe’s beautiful frog-fastening wool pieces.
The toggles just add such a cute detail.
Layer over a white T-shirt for a clean, elevated look.
I just know I would throw this on so much to make all my basic outfits look chicer this season.
The perfect length to pair with jeans.
This has a beautiful, softly structured shape.
Somewhere between a cardigan and a knitted jacket, I can’t get enough of this elegant number.
This would complement a capsule wardrobe perfectly.
So affordable, yet so expensive-looking.
A lovely cream cardigan never goes amiss in an autumn wardrobe.
